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Finding the Fourth Proportional to 629,928.60, 944,892.90 and 230,436.60

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Solution

The fourth proportional to 629,928.60, 944,892.90 and 230,436.60 is: 345,654.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,928.60 : 944,892.90 = 230,436.60 : x
  2. Step 2: Convert to fraction form
    629,928.60/944,892.90 = 230,436.60/x
  3. Step 3: Cross multiply
    629,928.60x = 944,892.90 × 230,436.60
  4. Step 4: Simplify right side
    629,928.60x = 217,737,907,240.14
  5. Step 5: Solve for x
    x = 217,737,907,240.14/629,928.60
  6. Step 6: Final answer
    x = 345,654.90

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.